python3.7发送邮件带附件
代码：
1 # -*- coding: utf-8 -*- 2 3 import smtplib, ssl 4 from email.mime.text import MIMEText 5 from email.mime.multipart import MIMEMultipart 6 7 8 def send_email_with_custom_smtp(sender_email, receiver_email, server, port, usr, password, subject, text, html, 9 annex_path): 10 # mail gun exception, switch to port 465 11 # see: https://stackoverflow.com/questions/57715289/how-to-fix-ssl-sslerror-ssl-wrong-version-number-wrong-version-number-ssl 12 if server == 'smtp.mailgun.org': 13 port = 465 14 15 message = MIMEMultipart("alternative") 16 if annex_path is not None: 17 for k in annex_path: 18 attach = MIMEText(k['annexContent'], 'base64', 'utf-8') 19 attach["Content-Type"] = 'application/octet-stream' 20 attach.add_header('Content-Disposition', 'attachment', filename='{}'.format(k['annexName'])) 21 message.attach(attach) 22 else: 23 pass 24 message["Subject"] = subject 25 message["From"] = sender_email 26 message["To"] = receiver_email 27 28 # Turn these into plain/html MIMEText objects 29 part1 = MIMEText(text, "plain") 30 part2 = MIMEText(html, "html") 31 32 # Add HTML/plain-text parts to MIMEMultipart message 33 # The email client will try to render the last part first 34 message.attach(part1) 35 message.attach(part2) 36 37 38 # Create a secure SSL context 39 context = ssl.create_default_context() 40 with smtplib.SMTP_SSL(server, port, context=context) as server: 41 if int(port) == 587: 42 server.starttls(context=context) 43 try: 44 server.login(usr, password) 45 except: 46 raise ValueError('登录失败，请检查邮箱用户名与密码（授权码）是否正确') 47 try: 48 server.sendmail( 49 sender_email, receiver_email, message.as_string() 50 ) 51 return '邮件发送成功。', True 52 except: 53 return '邮件发送失败', False
